很多人认为氢氧化钾和烧碱是一款产品，其实不然。这两者在有些地方是一样的，都具有很强的碱性。这些领域不要混淆，下面就来简单的讲解下内容。

　　Many people think that potassium hydroxide and caustic soda are the same product, but they are not. They're the same in some places, they're both very basic. Not to confuse these areas, here's a quick overview.

　　烧碱的物理性质：

　　纯品为无色透明晶体，相对密度2.130，熔点318.4℃，沸点1390℃。市面上的烧碱有固态烧碱和液态烧碱两种：纯固态烧碱呈白色，呈块状、片状、棒状、颗粒状和脆性状；纯液烧碱为无色透明液体，固体烧碱吸湿性强，易溶于水，溶解时放热，水溶液呈碱性，有油腻感；溶于乙醇和甘油；不溶于丙酮和乙醚。腐蚀性强，对纤维、皮肤、玻璃、陶瓷等有腐蚀作用。与金属铝和锌、非金属硼和硅反应放出氢气；与氯、溴、碘等卤素发生歧化反应；它与酸中和，生成盐和水。

　　Physical properties of caustic soda:

　　Pure product is colorless transparent crystal, relative density 2.130, melting point 318.4℃, boiling point 1390℃. The caustic soda on the market has solid caustic soda and liquid caustic soda two kinds: pure solid caustic soda white, block, flake, rod, granular and brittle character; Pure liquid caustic soda is colorless transparent liquid, solid caustic soda hygroscopicity is strong, soluble in water, heat release when dissolved, aqueous solution is alkaline, greasy; Soluble in ethanol and glycerin; Insoluble in acetone and ether. It is highly corrosive to fiber, skin, glass, ceramics, etc. Hydrogen is produced by reaction with aluminum and zinc, boron and silicon. Disproportionation reaction with chlorine, bromine, iodine and other halogens; It neutralizes with acids to form salts and water.

　　氢氧化钾的物理性质：

　　白色斜方晶体，工业品为白色或浅灰色块状或棒状，相对密度2.044（20℃），熔点360.4℃，沸点1320-1324℃。易溶于水，溶解时放出大量溶解热，吸水性强，能吸水溶解在空气中，吸收二氧化碳逐渐变成碳酸钾。溶于乙醇，微溶于乙醚，强碱性，有腐蚀性，性质与烧碱相似。

　　因此，氢氧化钾和烧碱在某些性质上相似，应用领域大致相同。它们不能用于各自的行业。因此，用户在购买时应根据产品本身的特点来判断是否符合自己的要求。

　　Physical properties of potassium hydroxide:

　　White rhexagon crystal, industrial products are white or light gray block or rod, relative density 2.044 (20℃), melting point 360.4℃, boiling point 1320-1324℃. Soluble in water, release a large amount of solution heat when dissolving, strong water absorption, can absorb water and dissolve in the air, absorb carbon dioxide gradually into potassium carbonate. Soluble in ethanol, slightly soluble in ether, strong alkaline, corrosive, similar to caustic soda properties.

　　Therefore, potassium hydroxide and caustic soda are similar in some properties and have roughly the same application fields. They cannot be used in their respective industries. Therefore, users should judge whether the product meets their requirements according to its own characteristics when purchasing.

　　在分析化学中，烧碱和氢氧化钾经常互换使用。但是，在某些应用中，两者不能互换使用，例如氢气发生器，并指定氢氧化钾。对于医用碱石灰，指定烧碱。烧碱的吸湿性比氢氧化钾强，所以氢氧化钾常用于化学分析。同样，烧碱在用作干燥剂时也应使用。比如你说的药用碱石灰，是指定烧碱的，但是两个烧碱的比较便宜，需要更换烧碱。

　　In analytical chemistry, caustic soda and potassium hydroxide are often used interchangeably. However, in some applications the two cannot be used interchangeably, such as hydrogen generators and specifying potassium hydroxide. For medical alkali lime, caustic soda is specified. Caustic soda is more hygroscopic than potassium hydroxide, so potassium hydroxide is often used in chemical analysis. Similarly, caustic soda should also be used as a desiccant. For example, the medicinal alkali lime you say is designated caustic soda, but the price of two caustic soda is relatively cheap, and caustic soda needs to be replaced.

　　氢氧化钾和烧碱都具有强腐蚀性，不管是使用还是保存的时候都要小心翼翼的，遵守正确的操作守则，更多内容就来这里www.jinhao360.com咨询吧！

　　Potassium hydroxide and caustic soda are highly corrosive, whether it is the use or preservation of time to be careful, abide by the correct code of operation, more content to come here www.jinhao360.com consultation!